Improvement in cultivators



Gr LEGHTENTHALER.

Q Cultivator. V

. No. 11,379 v Patented July 25, 1854.

N. PETERS. PHDTO-LIYHQGRAPHER. WASHINGTON D C machine.

UNITED STATES PATENT OFFICE. I

IMPROVEMENT IN CULTIVATORS.

Specification forming part of Letters Patent No. 1|,379, dated July 25,1854. F

To all whom it may concern:

Be it known that I, GRIFFITH 'LICHTEN- THALER, of Limestoneville, in thecounty of Montour and State of Pennsylvania, have invented a new andImproved Cultivator; and I do hereby declare that the following isafull, clear, and exact description of the same, ref erence being bad tothe annexed drawings, making a part of this specification, in which-Figure 1 is a plan or top view of my improved Fig. 2 is a side view ofthe same. Fig. 3 is aback view of one of the beams and a share attachedto it. Fig. 4 is a detached perspective view of a share.

Similar letters of reference indicate corresponding parts in the severalfigures.

This invention relates to a new and improved cultivator; and it consistsin the peculiar manner of attaching the shares to the beams, whereby theshares may be readily adjusted to the beams, and also allowed to yieldor give to any obstructions with which they may come in contact.

To enable others skilled in the art to fully understand and constructmyiuvention, Iwill proceed to describe it.

' A A represent two beams, secured in an oblique position by cross-tiesB B, which are attached to uprights a on the beams. The oblique positionof the beams gives the usual triangular or barrow shape, the trout endsof the beams being nearer together than the back ends. (See Fig. 1.) Y

O O are the handles or stilts attached to the cross-ties, and D is areach secured to the cross-ties, and having a swivel-tree, E, attachedto its outer end.

In the under surface of each beam A there is a longitudinal groove orrecess, b, (see Fig. 3,) in which a metallic strip, F, is fitted andsecured therein by wedges or keys 0, which pass through projections d.The projections pass upward from the strips F through the beams A, thewedges or keys being driven through eyes in the projections above thebeams. (See Figs. 1, 2, and 3.) Each strip F is perforated with holes f,as shown in Fig. 2.

The shares, Figs. 1, 2, 3, and 4., are represented by G. Each share hasa socket formed of two lips, 99, both of which are shown in Figs. 3 and4. The sockets, it will be seen, are at the upper ends of the shares,and have holes h 71. through them, both holes being seen in Fig. 4.

The shares G are secured to the beams A by placing the lips g g in thegrooves or recesses b, the strip F fitting between the lips, (see Figs.2and 3,) and inserting a metal pivot 01' pin, '5, through the hindermostholes of the lips and through a corresponding hole, f, in the strip.\Vooden pinsj are passed through the front holes of the lips and throughcorresponding holes,f, in the strips, also showniu Fig. 2.

The body of the shares are set nearly at right angles with the beams AA, as shown in Fig. 1, and the dirt is thrown by the shares as themachine is moved along toward the center of the machine. (See Fig. 1.)

In case of the shares meeting with any obstruction-such as a root,stump, stone, &c.-, the pinsj, being formed of wood, will break, and theshares G will turn backward the metal pins i, being the fulcrum orpivots, (see dotted lines, Fig. 2,) the pin of one share being brokenand the share forced back. By this arrangement the machine is preventedfrom being broken, orany of its parts wreuched or torn by suddenstoppages, owing to obstructions, and the shares, by means of thesockets at their upper ends and the perforated strips F, may be readilyadjusted to the beams. Shares of difi'erent forms may also be appliedwith the same facility, provided they have the sockets at their upperends.

What I claim as new, and desire to secure by Letters Patent, is

The method herein shown and described of attaching the shares G to thebeams Aviz., having metal strips F, perforated with holes f, secured tothe under sides of the beams A, and sockets formed of two lips, g 9,made at the upper ends of the shares and perforated with holes h h, inwhich holes h and in the holes f in the plates E wooden pins z j arepassed, securing the shares to the beams, as set forth.

GRIFFITH LIGHTENTHALER.

Witnesses:

JOSEPH GIBSON, DANIEL GONGEE.

